Road structure – process – or apparatus – Apparatus – Tool rotating in horizontal plane
Reexamination Certificate
2005-10-11
2009-10-20
Addie, Raymond W (Department: 3671)
Road structure, process, or apparatus
Apparatus
Tool rotating in horizontal plane
Reexamination Certificate
active
07604434
ABSTRACT:
An apparatus for leveling and smoothing a surface that permits blades to be easily installed and removed from their corresponding trowel arms. The blades are formed such that attachment of a blade to the trowel arm is achieved by simply attaching the blade using one or more threaded bolts. Further, the blades of the subject invention are formed without the need of riveting or welding operations thereby significantly decreasing the manufacturing time and expense of the blades.
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Addie Raymond W
Smith Mark F.
Smith Brandenburg Ltd
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